hello,
I am expert in eBay shop and listing template design. As per eBay new rules, eBay store cant have custom design. It will have eBay's by default theme. You can only add logo and top banner.
Regarding eBay listing template, I can design listing template matching your website theme with eBay new rules.
Please check my feedback for eBay work. Please show me your website and eBay store.
thanks
Tarique